Abstract: An electrophotographic photoconductor includes an electroconductive support, and a photoconductive layer formed thereon containing as an effective component an aromatic polycarbonate resin having a repeat unit of formula (I), or two repeat units of formula (II) and formula (III): ##STR1## wherein n, Ar.sup.1, Ar.sup.2, Ar.sup.3, R.sup.1, R.sup.2 and X are as specified in the specification, ##STR2## wherein k and j are also as specified in the specification.

Abstract: A positively-chargeable single-layered type organic electrophotographic photoconductor composed of an electroconductive support and an organic single-layered photoconductive layer containing a charge generating material, an organic positive hole transporting material and an organic acceptor compound which are dispersed in a matrix binder agent, with the relationship of the oxidation potential (E.sub.ox) of the charge generating material.ltoreq.the oxidation potential (E.sub.ox) of the organic positive hole transporting material being satisfied.

Abstract: An electrophotographic photoconductor is composed of an electroconductive substrate, and a photoconductive layer formed thereon, which contains a charge generating material, and a vinylidene compound of formula (I): ##STR1## wherein Ar represents an aromatic group; and X represents cyano group, an alkyl group having 1 to 8 carbon atoms, or an alkoxycarbonyl group represented by --COOC.sub.n H.sub.2n+1, in which n is an integer of 1 to 8; or a vinylidene compound of formula (II):Ar--CH.dbd.C(COOR).sub.2 (II)wherein Ar represents an aromatic group; and R represents an alkyl group having 1 to 8 carbon atoms, which may form a ring in combination of two of the alkyl groups, each of these vinylidene compounds serving as a charge transporting material.

Abstract: An electrophotographic photoconductor is composed of an electroconductive support, and a photoconductive layer formed on the electroconductive support, which contains a charge generating material and a charge transporting material consisting of an .alpha.-cyanostilbene compound of formula (I): ##STR1## wherein R.sup.1 and R.sup.2 each represent a phenyl group, a polycyclic aromatic group selected from the group consisting of a naphthyl group, an anthracenyl group, a phenanthrenyl group, and a pyrenyl group, or a heterocyclic group selected from the group consisting of a pyridyl group, a furanyl group, and a quinolyl group.

Abstract: An electrophotographic photoconductor is composed of an electroconductive substrate, and a photoconductive layer, formed thereon, which contains a charge generating material, and a vinylidene compound of formula (I): ##STR1## wherein Ar represents a metallocene group; and X represents cyano group, an alkyl group having 1 to 8 carbon atoms, or an alkoxycarbonyl group represented by --COOC.sub.n H.sub.2n+1, in which n is an integer of 1 to 8; or a vinylidene compound of formula (II):Ar--CH.dbd.C(COOR).sub.2 (II)wherein Ar represents a metallocene group; and R represents an alkyl group having 1 to 8 carbon atoms, which may form a ring in combination of two of the alkyl groups, each of these vinylidene compounds serving as a charge transporting material.

Abstract: An organic photovoltaic element is composed of a first electrode, a first electron acceptor organic layer provided on the first electrode, a second electron acceptor organic layer which is different from the first electron acceptor organic layer, provided on the first electron acceptor organic layer, a first electron donor organic layer provided on the second electron acceptor organic layer, a second electron acceptor organic layer which is different from the first electron acceptor organic layer, provided on the first electron acceptor organic layer, and a second electrode provided on the second electron acceptor organic layer, at least one of the first electrode or the second electrode being transparent.

Abstract: A photoelectric conversion device is composed of a first electrode and a second electrode, at least one of the electrodes being transparent; and a first organic material layer and a second organic material layer, which are overlaid between the first electrode and the second electrode in such a junction relationship that the first organic material layer and the second organic material layer constitute a rectifying junction, the first electrode and the first organic material layer constitute an ohmic junction, and when the first electrode comes into contact with the second organic material layer, the first electrode and the second organic material layer constitutes a rectifying junction, and the second electrode and the second organic material layer constitute an ohmic junction, and when the second electrode comes into contact with the first organic material layer, the second electrode and the first organic material layer constitute a rectifying junction.

Abstract: An electric device comprises a portion comprising an electrode, an n-type inorganic semiconductor layer formed on the electrode, and an electron-conductive organic layer formed on the n-type inorganic semiconductor layer, and a photoelectric conversion device utilizes the above electric device by using the electron-conductive organic layer as an electron acceptor, with addition of an electron donor layer and another electrode thereto.

Abstract: An electric device comprises a portion comprising an electrode, an n-type inorganic semiconductor layer formed on the electrode, and an electron-conductive organic layer formed on the n-type inorganic semiconductor layer, and a photoelectric conversion device utilizes the above electric device by using the electron-conductive organic layer as an electron acceptor, with addition of an electron donor layer and another electrode thereto.

Abstract: A photoelectric conversion element has a front electrode, a rear electrode and a photo-activatable layer sandwiched between these electrodes. The photo-activatable layer contains a compound selected from a group consisting of a triphenylamine compound, a diaminocarbazole compound, an oxazole compound, a thiazole compound, and 1,3-dithiol compound. The compound contained in the photo-activatable layer improves photoelectric conversion efficiency.

Abstract: An N,N'-diphenylbenzidine polymer and a method of producing the N,N'-diphenylbenzidine polymer by electrochemical polymerization of N,N'-diphenylbenzidine having the formula are disclosed: ##STR1##

Abstract: The present invention relates to a photoelectric transducer element comprising a light-transmissive front electrode, a photo-active layer and a back electrode, characterized in that said photo-active layer contains an azo compound expressed by the general formula (I), ##STR1## wherein A represents a coupler residue.

Abstract: A toner for developing latent electrostatic images comprising particles is disclosed, which is composed of a mixture of a colorant and/or magnetic material, a binder agent and a charge controlling agent of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each represent an unsubstituted or substituted aryl group; and X represents an anionic functional group.

Abstract: The place shift-up mechanism of a digital clock comprises ratchet feed mechanism which permits manual setting of the clock even during the shift-up operation. The ratchet feed mechanism comprises an eccentric cam secured to a rotary shaft which also carries an eccentric operation pin. A ratchet wheel is rotatably supported by the shaft. A place shift-up lever is supported so as to be capable of rocking and sliding movement and has a forked leg plate with spaced legs receiving the eccentric cam between them. One leg of the forked leg plate has a feed pawl for engagement with the ratchet wheel and also a hook pawl engageable by the operation pin to move the place shift-up lever in one direction. The other leg of the forked leg plate has a return pawl which is engageable by the operation pin to move the plate shift-up lever in an opposite direction.

Abstract: A film display clock comprises endless display films respectively displaying units of minutes, tens of minutes, and hours. The lengths of the display films are equal.

Abstract: An operation member slidably supported on a base plate has opposed pawls which are spaced apart and project toward one another. A position control cam and an integral supplementary cam are rotatably supported on the base between the two pawls. The pawls are disposed on different planes so that a first pawl is engageable with the control cam and the second pawl is engageable with the supplementary cam. The operation member is spring biased in a direction to move the first pawl toward the position control cam. The position control cam is provided alternately with deep concaves and shallow concaves. When the first pawl of the operation member engages in a deep concave it is in one position. When it engages a shallow concave it is in a second position. The supplementary cam has teeth at positions corresponding to the concaves of the position control cam.